拟合优度

Actually, the results of goodness of fit vary distinctly across different fitting methods.

事实上，不同的检验方法得出的模型的拟合优度有着明显的差别。

Model selection, testing goodness of fit, estimation of parameters, measures of association and

模型选择、拟合优度检验、参数估计，检测显著性来源的关联和方法的度量。

A new goodness of fit test, K test,is developed for Γ distributions.

基于前人提出的统计理论，就工程中常用的Γ分布给出了一种新的拟合优度检验方法———K检验。

Model selection, testing goodness of fit, estimation of parameters, measures of association and methods for detecting sources of significance.

模型选择，拟合优度检验，参数估计，检测显著性来源的关联和方法的度量。

As measure of the model's goodness of fit, no more than 6% of the variance is -explained in relation to smoking, physical inactivity, and obesity.

随着Nagelkerke作为衡量模型的拟合优度，不超过6％的变异？？是，解释有关吸烟，缺乏身体活动和肥胖。

Finally, the wind velocity data of Nantong observatory are used to verify the methods above-mentioned, and the likelihood ratio method and Kolmogorov statistic are used to test the fitness of the distribution, It is obtained that the distribution of yearly extreme wind velocity of the observatory is in keeping with Frechet distribution, and the experimental distribution form from samples basically coincides with the theoretical ones.

采用南通气象观测站的年最大风速资料进行实证研究，分别用似然比法和Kolmogorv统计量检验分布的拟合优度，得出南通气象观测站年最大风速符合Frechet分布，而由样本值构造的经验分布与理论分布曲线基本相吻合。

Where P (Y=1) is the probablity of a site selected by Locusta migratoria manilensis. After evaluated by methods of Goodness of Fit, Predictive Accuracy and Model Chi-square Statistic, the established regression model is proved to be reliable and can predict eggpods occurrence well.

利用拟合优度、预测准确性及模型x^2统计(Model chi-square statistic)等指标对模型进行评价的结果表明，所组建的用于预测飞蝗产卵场所选择的Logistic回归模型是可靠的，且能较好地预测事件是否发生。

Firstly, reviewing and commenting on foreign and domestic literature about nonrecurring gains and losses; secondly, analyzing the definition and characteristics of nonrecurring gains and losses and the reason to form nonrecurring gains and losses; following, examining the research hypothesis using descriptive statistics and correlation analysis and regression of price and return model, furthermore optimizing the price model and return model through adding year variable and district variable which was divided according the return of the extraordinary items as dummy variables in the empirical research part.

文章先对国内外关于非经常性损益的研究现状进行回顾与述评；其次对我国关于非经常性损益的界定及其形成动机进行了分析；紧接着实证部分采用描述性统计、相关分析和运用价格模型和收益模型进行回归分析，对本文提出的研究假设进行检验，并加入年度虚拟变量和按照非经常项目利润率进行划分的区间虚拟变量对价格模型和收益模型进一步优化，使线性回归方程的拟合优度R2得到显著提高，利用优化后的模型对研究假设进一步检验。

Wavelength calibration coefficients were calculated through regression analysis after several ordinal numbers of CCD's pixels corresponding to Mercury-Argon Lamp's spectral lines were measured. The residuals of certain spectral lines were computed using the coefficients measured and the ones from factory, the degree of fitting for regression equation was estimated using the new coefficients. The final results validated the wavelength calibration model.

在测量了多条光谱线对应的CCD像元的序数之后，使用回归分析得到波长定标的系数，连同光谱仪出厂时的波长定标系数，计算出了两组定标系数在给定的一些谱线位置处的残差，并利用实验所得的系数对回归方程进行了拟合优度检验，结果表明波长定标模型是有效的。

The polygonal line regression model shows that RMB exchange rate is indeed affected by exchange rate policy.

此外，折线回归模型的回归结果表明：我国的人民币汇率确实受到人民币汇率制度安排因素的影响，使得人民币汇率出现跳跃式的发展，呈现出了折线形状，从拟合优度来看，折线模型能够很好地解释我国人民币汇率的政策及制度效应。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。